How to Convert OST to PST Outlook - Version 3.5 How to Convert OST to PST Outlook? If you want archive OST file with all email properties and convert into Outlook PST file. Exchange sever mailbox items damaged owing virus attack, server down, software and hardware collapse, you want to retrieve the mailbox use OST Recovery Software to convert OST (Offline Storage Table) to new Outlook PST file. It is very innovative tool for repair data. It has some additional tool to read character one by one and all the data save in tree format in Outlook individual folders. OST recovery tool work with windows operating system but synchronize in between Outlook and Microsoft Exchange server this pick data from server and sent in Outlook. If user wants more information then go to link: - http://www.ostconvertertopst.com/